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(11) | EP 0 747 579 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Particulate trap for diesel engine |
| (57) A particulate trap (1) for diesel engine use which is less likely to vibrate or deform
under exhaust pressures, and which achieves goods results in all of the particulate
trapping properties, pressure drop, durability and regenerating properties. This trap
has a filter element comprising a plurality of flat or cylindrical filters (5) of
three-dimensionally reticulated porous member. Longitudinally extending exhaust incoming
(3) and outgoing spaces (4) are defined alternately between the adjacent filters by
alternately closing the inlet and outlet ends of the spaces between the adjacent filters.
Gas permeable reinforcing members (2-1) are inserted in the exhaust outgoing spaces
(4) to prevent the filter from being deformed due to the difference between the pressure
upstream and downstream of each filter produced when exhausts pass through the filters.
Similar gas permeable reinforcing members (2-2) may also be inserted in the exhaust
incoming spaces or at both ends of the filter element to more positively prevent vibration
of the filters. |